The correct options are:
A. A PHOSPHATE GROUP
B. A SUGAR
D. NITROGENOUS BASE
These molecules comprise the nucleotide. The nitrogenous base in DNA could either be adenine, guanine, cytosine, and uracil; however, thymine will be replaced by uracil in RNA. Its sugar will be either a ribose (RNA) or deoxyribose (DNA).
